Illegal division by zero at .\bin\pdkc.pl line 536.

Running .\bin\pdkc.pl at Wed Aug 26 08:33:42 2015 on host ephyra-vm2

Command line:
.\bin\pdkc.pl -rov vnta -dive 1406

.\bin\pdkc.pl: Getting Expedition object for diveno = 1406 and rname = vnta
set_expd(): rov = vnta, diveno = 1406
set_expd(): Executing sql:
SELECT ExpeditionID_FK, DateDiff(ss, '01/01/70', DiveStartDtg), DateDiff(ss, '01/01/70', DiveEndDtg), DiveStartDtg, DiveEndDtg FROM Dive WHERE DiveNumber = 1406 AND RovName = 'vnta'

RS->Fields(0)->Value= 1622

RS->Fields(1)->Value= 895085400

RS->Fields(2)->Value= 895094700

RS->Fields(3)->Value= 5/13/1998 6:50:00 PM

RS->Fields(4)->Value= 5/13/1998 9:25:00 PM

set_expd(): $self->{EndDDD} = 133
set_expd(): $self->{StartEsecs} = 895084200
set_expd(): $self->{EndEsecs} = 895095900
set_expd(): $self->{EndDtg} = 5/13/1998 9:25:00 PM
_readLogr(): Reading videologr data from 1998133videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 895084200 & 895095900
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 895095906, self->{EndEsecs} = 895095900
_readLogr(): #LOGHOST_SYSTEM_UTC = 1004
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 895085846
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 895095896
set_expd(): Calling _refineStartAndEndEsecs...
refineStartAndEndEsecs(): LOGHOST_SYSTEM_UTC[0] = 895085846
refineStartAndEndEsecs(): $LOGHOST_SYSTEM_UTC[end] = 895095896
refineStartAndEndEsecs(): numMinBack = 22, numMinForward = 22
refineStartAndEndEsecs(): Refined StartEsecs = 895084080, Refined EndEsecs = 895096020 
_readLogr(): Reading videologr data from 1998133videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 895084080 & 895096020
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 895096026, self->{EndEsecs} = 895096020
_readLogr(): #LOGHOST_SYSTEM_UTC = 1016
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 895085846
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 895096016
rovnavCTDO(): getRaw = 1
rovnavCTDO(): calcUTM = 0
rovNav(): 1, calcUTM = 0
rovNav(): 2, getRaw = 1
rovNav(): calcUTM = 0
rovNav(): DDD = 133 (looping to 133) 
Does file exist?: \\atlas\RovNavEdit\1998\vnta\nav1998133vntaedited.txt
   yes.
EXPD.pm: editNav flag = 
rovNav(): Opening ROV nav data from \\atlas\RovNavEdit\1998\vnta\nav1998133vnta.txt
esecs, east, north, lat, lon, head, pres
rovNav(): 133: -1  in tList after reading from \\atlas\RovNavEdit\1998\vnta\nav1998133vnta.txt
-1 in tList
-1 in {self->{rovT}}
-1 in {self->{rovH}}
rovCTDO(): ROV CTDO start & stop times are    & 
rovNavCTDO(): Looking up ROVCTDO data ('.'found, 'X' exceeds max iter.):

rovGDCListRefs(): dMedian = 
rovGDCListRefs(): dStats->sample_range = 
rovGDCListRefs(): rovDepth (paroscientific) range is less than 1.  Using rovctd calculated depth
rovNav(): 1, calcUTM = 0
rovNav(): 2, doNotRefineStartEnd = 1
rovNav(): calcUTM = 0
rovNav(): DDD = 133 (looping to 133) 
Does file exist?: \\atlas\RovNavEdit\1998\vnta\nav1998133vntaedited.txt
   yes.
EXPD.pm: editNav flag = 
rovNav(): Opening ROV nav data from \\atlas\RovNavEdit\1998\vnta\nav1998133vntaedited.txt
esecs, east, north, lat, lon, head, pres
rovNav(): 133: -1  in tList after reading from \\atlas\RovNavEdit\1998\vnta\nav1998133vntaedited.txt
-1 in tList
-1 in {self->{rovT}}
-1 in {self->{rovH}}
rovGDCListRefs(): dMedian = 
rovGDCListRefs(): dStats->sample_range = 
rovGDCListRefs(): rovDepth (paroscientific) range is less than 1.  Using rovctd calculated depth

.\bin\pdkc.pl: -------------------------------------------------------------------------------

Position subsampling set to 1